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authorCatalin Enache <catalin.enache@windriver.com>2017-05-29 11:23:08 (GMT)
committerRichard Purdie <richard.purdie@linuxfoundation.org>2017-06-05 22:30:22 (GMT)
commit30a1a8e44896f3095830f9e85725414305c27b3b (patch)
tree60fab7771e24f1daeb6758e4ee5dfc7428c374d3
parent31e9be198160dbeb3d6ab10a3324457f9e502537 (diff)
downloadpoky-30a1a8e44896f3095830f9e85725414305c27b3b.tar.gz
ghostscript: CVE-2016-7977, CVE-2016-7978, CVE-2016-7979, CVE-2017-9216
Ghostscript before 9.21 might allow remote attackers to bypass the SAFER mode protection mechanism and consequently read arbitrary files via the use of the .libfile operator in a crafted postscript document. Use-after-free vulnerability in Ghostscript 9.20 might allow remote attackers to execute arbitrary code via vectors related to a reference leak in .setdevice. Ghostscript before 9.21 might allow remote attackers to bypass the SAFER mode protection mechanism and consequently execute arbitrary code by leveraging type confusion in .initialize_dsc_parser. libjbig2dec.a in Artifex jbig2dec 0.13, as used in MuPDF and Ghostscript, has a NULL pointer dereference in the jbig2_huffman_get function in jbig2_huffman.c. For example, the jbig2dec utility will crash (segmentation fault) when parsing an invalid file. References: https://nvd.nist.gov/vuln/detail/CVE-2016-7977 https://nvd.nist.gov/vuln/detail/CVE-2016-7978 https://nvd.nist.gov/vuln/detail/CVE-2016-7979 https://nvd.nist.gov/vuln/detail/CVE-2017-9216 Upstream patches: http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=8abd22010eb4db0fb1b10e430d5f5d83e015ef70 http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=6f749c0c44e7b9e09737b9f29edf29925a34f0cf http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=875a0095f37626a721c7ff57d606a0f95af03913 http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=3ebffb1d96ba0cacec23016eccb4047dab365853 (From OE-Core rev: 584dfa2f780d5785aaff01f84fbabc18b3478d76) (From OE-Core rev: 6fed7cd6077c46ad2213226d4675fad9b10ab024) Signed-off-by: Catalin Enache <catalin.enache@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
-rw-r--r--meta/recipes-extended/ghostscript/ghostscript/CVE-2016-7977.patch33
-rw-r--r--meta/recipes-extended/ghostscript/ghostscript/CVE-2016-7978.patch30
-rw-r--r--meta/recipes-extended/ghostscript/ghostscript/CVE-2016-7979.patch48
-rw-r--r--meta/recipes-extended/ghostscript/ghostscript/CVE-2017-9216.patch36
-rw-r--r--meta/recipes-extended/ghostscript/ghostscript_9.20.bb4
5 files changed, 151 insertions, 0 deletions
diff --git a/meta/recipes-extended/ghostscript/ghostscript/CVE-2016-7977.patch b/meta/recipes-extended/ghostscript/ghostscript/CVE-2016-7977.patch
new file mode 100644
index 0000000..b7eed12
--- /dev/null
+++ b/meta/recipes-extended/ghostscript/ghostscript/CVE-2016-7977.patch
@@ -0,0 +1,33 @@
1From 8abd22010eb4db0fb1b10e430d5f5d83e015ef70 Mon Sep 17 00:00:00 2001
2From: Chris Liddell <chris.liddell@artifex.com>
3Date: Mon, 3 Oct 2016 01:46:28 +0100
4Subject: [PATCH] Bug 697169: Be rigorous with SAFER permissions
5
6Once we've opened our input file from the command line, enforce the SAFER
7rules.
8
9Upstream-Status: Backport
10CVE: CVE-2016-7977
11
12Signed-off-by: Catalin Enache <catalin.enache@windriver.com>
13---
14 psi/zfile.c | 3 +++
15 1 file changed, 3 insertions(+)
16
17diff --git a/psi/zfile.c b/psi/zfile.c
18index b6caea2..2c6c958 100644
19--- a/psi/zfile.c
20+++ b/psi/zfile.c
21@@ -1081,6 +1081,9 @@ lib_file_open(gs_file_path_ptr lib_path, const gs_memory_t *mem, i_ctx_t *i_ctx
22 gs_main_instance *minst = get_minst_from_memory(mem);
23 int code;
24
25+ if (i_ctx_p && starting_arg_file)
26+ i_ctx_p->starting_arg_file = false;
27+
28 /* when starting arg files (@ files) iodev_default is not yet set */
29 if (iodev == 0)
30 iodev = (gx_io_device *)gx_io_device_table[0];
31--
322.10.2
33
diff --git a/meta/recipes-extended/ghostscript/ghostscript/CVE-2016-7978.patch b/meta/recipes-extended/ghostscript/ghostscript/CVE-2016-7978.patch
new file mode 100644
index 0000000..668f205
--- /dev/null
+++ b/meta/recipes-extended/ghostscript/ghostscript/CVE-2016-7978.patch
@@ -0,0 +1,30 @@
1From 6f749c0c44e7b9e09737b9f29edf29925a34f0cf Mon Sep 17 00:00:00 2001
2From: Chris Liddell <chris.liddell@artifex.com>
3Date: Wed, 5 Oct 2016 09:59:25 +0100
4Subject: [PATCH] Bug 697179: Reference count device icc profile
5
6when copying a device
7
8Upstream-Status: Backport
9CVE: CVE-2016-7978
10
11Signed-off-by: Catalin Enache <catalin.enache@windriver.com>
12---
13 base/gsdevice.c | 1 +
14 1 file changed, 1 insertion(+)
15
16diff --git a/base/gsdevice.c b/base/gsdevice.c
17index 778106f..aea986a 100644
18--- a/base/gsdevice.c
19+++ b/base/gsdevice.c
20@@ -614,6 +614,7 @@ gx_device_init(gx_device * dev, const gx_device * proto, gs_memory_t * mem,
21 dev->memory = mem;
22 dev->retained = !internal;
23 rc_init(dev, mem, (internal ? 0 : 1));
24+ rc_increment(dev->icc_struct);
25 }
26
27 void
28--
292.10.2
30
diff --git a/meta/recipes-extended/ghostscript/ghostscript/CVE-2016-7979.patch b/meta/recipes-extended/ghostscript/ghostscript/CVE-2016-7979.patch
new file mode 100644
index 0000000..9e930d3
--- /dev/null
+++ b/meta/recipes-extended/ghostscript/ghostscript/CVE-2016-7979.patch
@@ -0,0 +1,48 @@
1From 875a0095f37626a721c7ff57d606a0f95af03913 Mon Sep 17 00:00:00 2001
2From: Ken Sharp <ken.sharp@artifex.com>
3Date: Wed, 5 Oct 2016 10:10:58 +0100
4Subject: [PATCH] DSC parser - validate parameters
5
6Bug #697190 ".initialize_dsc_parser doesn't validate the parameter is a dict type before using it."
7
8Regardless of any security implications, its simply wrong for a PostScript
9operator not to validate its parameter(s).
10
11No differences expected.
12
13Upstream-Status: Backport
14CVE: CVE-2016-7979
15
16Signed-off-by: Catalin Enache <catalin.enache@windriver.com>
17---
18 psi/zdscpars.c | 13 +++++++++----
19 1 file changed, 9 insertions(+), 4 deletions(-)
20
21diff --git a/psi/zdscpars.c b/psi/zdscpars.c
22index c05e154..9b4b605 100644
23--- a/psi/zdscpars.c
24+++ b/psi/zdscpars.c
25@@ -150,11 +150,16 @@ zinitialize_dsc_parser(i_ctx_t *i_ctx_p)
26 ref local_ref;
27 int code;
28 os_ptr const op = osp;
29- dict * const pdict = op->value.pdict;
30- gs_memory_t * const mem = (gs_memory_t *)dict_memory(pdict);
31- dsc_data_t * const data =
32- gs_alloc_struct(mem, dsc_data_t, &st_dsc_data_t, "DSC parser init");
33+ dict *pdict;
34+ gs_memory_t *mem;
35+ dsc_data_t *data;
36
37+ check_read_type(*op, t_dictionary);
38+
39+ pdict = op->value.pdict;
40+ mem = (gs_memory_t *)dict_memory(pdict);
41+
42+ data = gs_alloc_struct(mem, dsc_data_t, &st_dsc_data_t, "DSC parser init");
43 if (!data)
44 return_error(gs_error_VMerror);
45 data->document_level = 0;
46--
472.10.2
48
diff --git a/meta/recipes-extended/ghostscript/ghostscript/CVE-2017-9216.patch b/meta/recipes-extended/ghostscript/ghostscript/CVE-2017-9216.patch
new file mode 100644
index 0000000..1caeb3e
--- /dev/null
+++ b/meta/recipes-extended/ghostscript/ghostscript/CVE-2017-9216.patch
@@ -0,0 +1,36 @@
1From 3ebffb1d96ba0cacec23016eccb4047dab365853 Mon Sep 17 00:00:00 2001
2From: Shailesh Mistry <shailesh.mistry@hotmail.co.uk>
3Date: Wed, 24 May 2017 19:29:57 +0100
4Subject: [PATCH] Bug 697934: Fix SEGV due to error code being ignored.
5
6The return code from jbig2_decode_text_region was being ignored so the
7code continued to try and parse the invalid file using incomplete/empty
8structures.
9
10Upstream-Status: Backport
11CVE: CVE-2017-9216
12
13Signed-off-by: Catalin Enache <catalin.enache@windriver.com>
14---
15 jbig2dec/jbig2_symbol_dict.c | 4 +++-
16 1 file changed, 3 insertions(+), 1 deletion(-)
17
18diff --git a/jbig2dec/jbig2_symbol_dict.c b/jbig2dec/jbig2_symbol_dict.c
19index 3cc1731..672425d 100644
20--- a/jbig2dec/jbig2_symbol_dict.c
21+++ b/jbig2dec/jbig2_symbol_dict.c
22@@ -493,8 +493,10 @@ jbig2_decode_symbol_dict(Jbig2Ctx *ctx,
23 }
24
25 /* multiple symbols are handled as a text region */
26- jbig2_decode_text_region(ctx, segment, tparams, (const Jbig2SymbolDict * const *)refagg_dicts,
27+ code = jbig2_decode_text_region(ctx, segment, tparams, (const Jbig2SymbolDict * const *)refagg_dicts,
28 n_refagg_dicts, image, data, size, GR_stats, as, ws);
29+ if (code < 0)
30+ goto cleanup4;
31
32 SDNEWSYMS->glyphs[NSYMSDECODED] = image;
33 refagg_dicts[0]->glyphs[params->SDNUMINSYMS + NSYMSDECODED] = jbig2_image_clone(ctx, SDNEWSYMS->glyphs[NSYMSDECODED]);
34--
352.10.2
36
diff --git a/meta/recipes-extended/ghostscript/ghostscript_9.20.bb b/meta/recipes-extended/ghostscript/ghostscript_9.20.bb
index 87a7a55..d3ae495 100644
--- a/meta/recipes-extended/ghostscript/ghostscript_9.20.bb
+++ b/meta/recipes-extended/ghostscript/ghostscript_9.20.bb
@@ -37,6 +37,10 @@ SRC_URI = "${SRC_URI_BASE} \
37 file://CVE-2017-5951.patch \ 37 file://CVE-2017-5951.patch \
38 file://CVE-2016-8602.patch \ 38 file://CVE-2016-8602.patch \
39 file://CVE-2017-7975.patch \ 39 file://CVE-2017-7975.patch \
40 file://CVE-2016-7977.patch \
41 file://CVE-2016-7978.patch \
42 file://CVE-2016-7979.patch \
43 file://CVE-2017-9216.patch \
40 " 44 "
41 45
42SRC_URI_class-native = "${SRC_URI_BASE} \ 46SRC_URI_class-native = "${SRC_URI_BASE} \